How To Operate Display Unit; Various Setting Methods; Setting Method; Description Of Display - Rheem RHMV4821SNACJA Manual De Instalación

■ Conduit installation
Front connection
Cable with
conduit
(for connection
cable)
Cable with conduit
(for power cable)
Fix the conduit with the supporters as shown below.
Conduit (Power supply cable)
Outdoor unit
30 in
(756 mm) (1,361 mm)
or less

4. HOW TO OPERATE DISPLAY UNIT

4.1. Various setting methods

Never touch electrical components such as the terminal blocks or reactor except the
switch on the display board. It may cause a serious accident such as electric shock.
• Once refrigerant charging is completed, be sure to open the valve prior to performing
the local settings. Otherwise, the compressor may fail.
• Discharge any static electricity from your body before touching the push switches.
Never touch any terminal or pattern of any parts on the control board.
• The positions of the switches on the outdoor unit control board are shown in the fi gure
below.
9374995677-02_IM.indb 11 9374995677-02_IM.indb 11
Lateral connection Rear connection
Lock nut
Lock nut
Supporter
54 in 54 in 54 in
(1,361 mm) (1,361 mm)
or less or less or less
WARNING
CAUTION
POWER ERROR
MONITOR
MODE
A B C D E F
TEST RUN
S W 1
PUMP DOWN
SET1-1
SET1 SET2 SET3
HEAT ON ON ON
COOL 1 2 3 4 1 2 3 4 1 2 3 4

4.1.1. Setting method

(1) Be sure to disconnect the power source or turn off the breaker.
(2) Change the DIP switch setting according to the required setting.
• Various settings can be adjusted by changing DIP switches and push switches on the
board of the outdoor unit.
• The printed characters for the LED display are shown below.
LED display part
( 1 ) ( 2 )
POWER ERROR
MODE
A
TEST RUN
S W 1
S
PUMP DOWN
SET1-1 SET1
HEAT ON
COOL 1 2 3 4
DIP switch part

4.1.2. Description of display

LED display lamp
• Turns on when the power supply is ON
(1) POWER/MODE Green
• Indicate the MODE by the number of fl ashes
(2) ERROR Red • Flashes at high-speed when there is an error.
A Red
B Red
• Displays the location and contents of errors
C Red
(3) MONITOR
D Red
E Red
F Red
Switch Function or operation method
SW1 Push • For the test run start and stop.
• For the pump down start and stop.
SET1-1 DIP • For selecting cooling or heating during test
operation.
SET1-2 DIP • For switching SW1 operation.
SET1-3 DIP • For switching the base heater.
SET1-4 DIP (Setting prohibited)
SET2-1 DIP • For selecting outdoor unit low noise operation
function.
SET2-2 DIP (Setting prohibited)
SET2-3 DIP (Setting prohibited)
SET2-4 DIP (Setting prohibited)
SET3-1 DIP (Setting prohibited)
SET3-2 DIP (Setting prohibited)
SET3-3 DIP (Setting prohibited)
SET3-4 DIP (Setting prohibited)
Be sure to disconnect the power source or turn off the breaker when changing the DIP
switch.
( 3 )
MONITOR
B C D E F
W 1
SET2 SET3
ON ON
1 2 3 4 1 2 3 4
Function or operation method
(Including when error occurs).
when the installation function is active.
when there is an error.
(Refer to 8. ERROR CODE for details.)

Factory setting

―
OFF
OFF
OFF
OFF
(Do not change)
OFF
OFF
(Do not change)
OFF
(Do not change)
OFF
(Do not change)
OFF
(Do not change)
OFF
(Do not change)
OFF
(Do not change)
OFF
(Do not change)
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